Electric-incandescent-lamp socket.



UNITED STATES PATENT OFFICE. A

GUY H. PROCTOR, OFl SOMERVILLE, MASSACHUSETTS, ASSIGNOR TO NEV ENGLAND ELECTRIC MANUFACTURING COMPANY, OF BOSTON, MASSA- CHUSETTS, A CORPORATION OF MASSACHUSETTS.

ELECTRIC-INCANDESCENT-LAM P SOCK-ET.

Y, srEcIFICATIoN forming part ofY Letters Patent No. 708,467,dated July 1. 1902- Application niet retfumy 28,1902. seriaino. 96,063. (No man.)

To @ZZ whom it may concern: v

Beit known that I, GUY H. PEocToR, a citizen of the United States, residing at Somerville, in the county of Middlesex and State of 5 Massachusetts, have invented a new and useful Improvement in Electric-'Incandescent- Lamp Sockets, of which the following is a speciication.

Myinvention consists, essentially, in a com- Io bined insulated cap-lining and-supportingears for insulating the cap and receiving the screws for holding the cap to the shell and base.

Referring to the drawings, (twice the size,) 15 Figure 1 is a plan of the combined insulatinglining having attached holding-ears of metal or similar material. Fig. 2 is a second form of the device of Fig. l having holding-ears made of the lining material. Fig. 3 is a seczo tion of the cap with the lining having-the ears ofy Fig. lin place. Fig. 4 is a detail showing the metal Vears before being attached to the cap.

Referring to the drawings, A is a cap (some- 25 times spoken of as a base for a socketshell, (not shown, as (i ts various forms are too.

Well known,) formed with the circumferential bead a and the two screw-holes ot and the neck portion a2.

3o B is the insulating-lining, of a shape adapted to fit into the concavity of the cap and having several catches b, adapted to fit into the circumferentialzb'ead a, and depending ears b2, having the perforated extensions b3 l 3 5 for reception of the above-mentioned screws, which ears may be formed either, as shown in Fig. 1of metal or like material, having, as shown, three thinclampingarms for penetrating the lining and being bent over upon 4o the same and a thickened extension perforated at 53.01', as shown in Figij2, whose depending ears?)2 are formed of .the insulating material, havingthreaded eyelets of any proper material set-intheir extensions constituting perforations b3.

I donot claim to be the inventor of the circumferential bead or of holding a lining by means of a bead or of an insulating-lining adapted to t the cap; but

What I claim is- 5o 1. An insulating cap-lining for the cap 0f incandescent-lamp sockets, formed to follow the concavity of the cap, and with retainingcatches adapted to fit a bead in the cap, and with depending holding-ears having their 55 thickened extensions perforated to receive the holding-screws which connect the cap, shell, and base.

2. In an electric-incandescent-lamp socket, in combination" with' the'capA having the 6o circumferential bead` a, an insulating-lining B, formed tofollow the concavity of the cap, and having catches or extensions h and holding-ears b2 perforated at b3.

3. L In'an incandescent-lamp.socket, in com- 65 bination with the ordinary capi-having a 'circumferential bead, an insulating-lining formed to follow the concavity ofthe cap, and withprojections adaptedto t into said circumferential bead, depending metallic ears 7o attached to said lining and perforated at their extremities; substantially as described and shown.

In witness whereof I hereunto subscribe my name this 26th day of February, 1902.

FRED C. CHAMBEELIN, ELsIE DMCWAIN. 

